Chapter 10 Install and System Administration for FortiOS 5.0 : Basic Administration : Connecting to the FortiGate unit
  
Connecting to the FortiGate unit
To configure, maintain and administer the FortiGate unit, you need to connect to it from a management computer. There are two ways to do this:
using the web-based manager: a GUI interface that you connect to using a current web browser, such as Firefox or Internet Explorer.
using the command line interface (CLI): a command line interface similar to DOS or UNIX commands that you connect to using SSH or a Telnet terminal.
See Also
Connecting to the web-based manager
Connecting to the CLI